Status Quo of a CO₂-Assisted Steam-Flooding Pilot Test in China

Table 2

Simulated reservoir production performance under different perforation thicknesses.

Scheme	Effective production time (day)	Cumulative oil production (t)	Cumulative steam injection (m^3)	Cumulative steam-oil ratio (m^3 (CWE)/t)
Perforation 7.2 m	1364	11919.83	68250	0.175
Perforation 5.8 m	1485	12468.15	74250	0.168
Perforation 4.5 m	1706	13470	85500	0.158
Perforation 3.6 m	2023	14162.55	101250	0.140
Perforation 2.7 m	2555	15270.45	127750	0.120